Oh my gosh, i have no idea how you thought of this but it was pretty clever. We never really figured out how they became a family, who is this Grandma person Yotsuba always brings up? is it really someone part of her family, if so why would she have to be adopted from a stranger? Just thinking outside the box. You definitely did. Sorry I'm not making myself clear but I really enjoyed this story, it was funny. Good job!